Agent skill

Video Post Production

by AnastasiyaW in AnastasiyaW/codex-claude-code-config

Video post-production rules: audio mastering, color, captions, platform export.

Install Video Post Production

skills CLI

$ npx skills add AnastasiyaW/codex-claude-code-config --skill video-post-production -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install AnastasiyaW/codex-claude-code-config video-post-production --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/AnastasiyaW/codex-claude-code-config.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/video-production/video-post-production .claude/skills/video-post-production && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "video-post-production" agent skill from https://github.com/AnastasiyaW/codex-claude-code-config/tree/main/skills/video-production/video-post-production into .claude/skills/video-post-production/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "video-post-production", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/AnastasiyaW/codex-claude-code-config/tree/main/skills/video-production/video-post-production

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add AnastasiyaW/codex-claude-code-config --skill video-post-production -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install AnastasiyaW/codex-claude-code-config video-post-production --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AnastasiyaW/codex-claude-code-config.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/video-production/video-post-production .agents/skills/video-post-production && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "video-post-production" agent skill from https://github.com/AnastasiyaW/codex-claude-code-config/tree/main/skills/video-production/video-post-production into .agents/skills/video-post-production/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "video-post-production", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add AnastasiyaW/codex-claude-code-config --skill video-post-production -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install AnastasiyaW/codex-claude-code-config video-post-production --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AnastasiyaW/codex-claude-code-config.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/video-production/video-post-production .cursor/skills/video-post-production && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "video-post-production" agent skill from https://github.com/AnastasiyaW/codex-claude-code-config/tree/main/skills/video-production/video-post-production into .cursor/skills/video-post-production/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "video-post-production", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/AnastasiyaW/codex-claude-code-config.git --path skills/video-production/video-post-production

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add AnastasiyaW/codex-claude-code-config --skill video-post-production -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install AnastasiyaW/codex-claude-code-config video-post-production --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AnastasiyaW/codex-claude-code-config.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/video-production/video-post-production .gemini/skills/video-post-production && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "video-post-production" agent skill from https://github.com/AnastasiyaW/codex-claude-code-config/tree/main/skills/video-production/video-post-production into .gemini/skills/video-post-production/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "video-post-production", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install AnastasiyaW/codex-claude-code-config video-post-production

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add AnastasiyaW/codex-claude-code-config --skill video-post-production -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/AnastasiyaW/codex-claude-code-config.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/video-production/video-post-production .github/skills/video-post-production && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "video-post-production" agent skill from https://github.com/AnastasiyaW/codex-claude-code-config/tree/main/skills/video-production/video-post-production into .github/skills/video-post-production/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "video-post-production", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add AnastasiyaW/codex-claude-code-config --skill video-post-production -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install AnastasiyaW/codex-claude-code-config video-post-production --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AnastasiyaW/codex-claude-code-config.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/video-production/video-post-production .opencode/skills/video-post-production && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "video-post-production" agent skill from https://github.com/AnastasiyaW/codex-claude-code-config/tree/main/skills/video-production/video-post-production into .opencode/skills/video-post-production/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "video-post-production", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: video-post-production
GitHub stars: 154
Token cost: ~1.7k tokens
SKILL.md length: 372 words
Files: 1
Skills in repo: 50
Repo updated: Oct 9, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Video post-production rules: audio mastering, color, captions, platform export.

Export for tiktok
SKILL.md covers Audio Rules, Caption / Subtitle Rules, Color Correction and Platform Export Configs, plus 3 more sections
Calls ffmpeg and npx
Export settings

What it does

Video Post Production is an agent skill from AnastasiyaW/codex-claude-code-config. Video post-production rules: audio mastering, color, captions, platform export. Use when: 'add music', 'add voiceover', 'export for tiktok', 'add captions', 'color grade', 'audio levels', 'master audio', 'export settings', 'platform requirements'. Covers FFmpeg patterns, audio chain, subtitle standards, and platform-specific export configs. Do NOT use to generate or animate the video frames/scenes in code (use remotion-production-guide), to write the script (use video-narrative-arc), or to evaluate script quality…

Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Media & Creative, covering Video production, Transcription and Text to speech and voice. It works with FFmpeg, TikTok, Remotion and YouTube. The repository describes itself as: Claude Code, Codex, and multi-agent configuration system: principles, hooks, skills, and workflow patterns for AI-assisted development. The licence is MIT.

When your agent uses it

Export for tiktok
Export settings
Platform requirements
Animate the video frames/scenes in code (use remotion-production-guide)

Example prompts

“add music”
“add voiceover”
“export for tiktok”
“/video-post-production”

Requirements

Node.js

What it can do on your machine

Read from SKILL.md and the folder at commit 67709af. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- ffmpeg
- npx
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npx, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Video Post Production loads about 1.7k tokens when it runs. Until then it costs about 158 tokens; SKILL.md has 372 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~158
When it runs · the whole SKILL.md, loaded when a task matches: ~1.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from AnastasiyaW/codex-claude-code-config at commit 67709af, republished under its MIT licence (© AnastasiyaW). 372 words, ~1,665 tokens.

Download SKILL.mdSave it as .claude/skills/video-post-production/SKILL.md (or your agent's skills folder).

name: video-post-production
description: Video post-production rules: audio mastering, color, captions, platform export. Use when: 'add music', 'add voiceover', 'export for tiktok', 'add captions', 'color grade', 'audio levels', 'master audio', 'export settings', 'platform requirements'. Covers FFmpeg patterns, audio chain, subtitle standards, and platform-specific export configs. Do NOT use to generate or animate the video frames/scenes in code (use remotion-production-guide), to write the script (use video-narrative-arc), or to evaluate script quality (use script-evaluator); this is the finishing stage applied to an already-rendered video.

Video Post-Production Guide

Rules and FFmpeg patterns for finishing videos: audio mastering, captions, color, and platform-specific export.

Audio Rules

Volume Levels (dB)

Track	Level	Notes
Voiceover	-12 to -10 dB	Primary audio, clear and upfront
Music (under VO)	-32 to -24 dB	Background, should not compete
Music (solo, no VO)	-16 to -12 dB	Can be louder when alone
Sound effects	-18 to -14 dB	Accent, not distraction
Silence floor	-60 dB	True silence feels unnatural, keep room tone

Music Selection by BPM

Mood	BPM Range	Use Case
Calm, reflective	60-80	Luxury brands, testimonials
Confident, steady	80-100	Corporate, explainers
Moderate energy	100-120	Product demos, features
Energetic	120-140	Launch videos, social ads
High energy	140+	Montage, fast-cut sequences

Rule: Match music tempo to edit pace. Cut on beats for professional feel.

Audio Mastering Chain (FFmpeg)

bash

# Full mastering chain: highpass + EQ + compression + loudness
ffmpeg -i input.mp4 -af "
  highpass=f=80,
  equalizer=f=3000:t=q:w=1.5:g=3,
  acompressor=threshold=-20dB:ratio=4:attack=5:release=50,
  loudnorm=I=-16:TP=-1.5:LRA=11
" -c:v copy output.mp4

Free Music/SFX Libraries

Mixkit (mixkit.co) - royalty-free, no attribution
Pixabay Audio (pixabay.com/music) - free, Pixabay license
Freesound (freesound.org) - CC licensed, varies
YouTube Audio Library - free for YouTube content

Caption / Subtitle Rules

Standards

Parameter	Value
Max characters per line	32-42
Max 2 lines simultaneously	Always
Display duration	1.5-7 seconds per caption
Min display	1.5 seconds (even for short text)
Font size	48-72px (for 1080p)
Font	Sans-serif, bold weight
Position	Bottom center, 10% from bottom edge
Background	Semi-transparent black (#000000AA)

Burn-in Captions (FFmpeg)

bash

# Basic caption burn-in
ffmpeg -i input.mp4 -vf "subtitles=subs.srt:force_style='FontSize=24,FontName=Arial,Bold=1,PrimaryColour=&HFFFFFF,OutlineColour=&H000000,Outline=2,MarginV=40'" output.mp4

# Word-by-word highlight (requires ASS format)
ffmpeg -i input.mp4 -vf "ass=styled_subs.ass" output.mp4

Color Correction

Quick Presets (FFmpeg)

bash

# Warm punch (indoor/talking head)
ffmpeg -i input.mp4 -vf "eq=contrast=1.1:brightness=0.02:saturation=1.15,colorbalance=rs=0.05:gs=-0.02:bs=-0.05" output.mp4

# Cool tech (product/SaaS)
ffmpeg -i input.mp4 -vf "eq=contrast=1.05:saturation=0.95,colorbalance=rs=-0.03:gs=0.01:bs=0.05" output.mp4

# High contrast B&W
ffmpeg -i input.mp4 -vf "hue=s=0,eq=contrast=1.3:brightness=0.03" output.mp4

Platform Export Configs

YouTube (16:9)

bash

ffmpeg -i input.mp4 \
  -c:v libx264 -preset slow -crf 18 -pix_fmt yuv420p \
  -c:a aac -b:a 192k -ar 48000 \
  -movflags +faststart \
  youtube_output.mp4

Show full SKILL.md (149 more words)Show less

TikTok / Instagram Reels (9:16)

bash

# Resize landscape to vertical with blur background
ffmpeg -i input_16x9.mp4 \
  -filter_complex "[0:v]scale=1080:1920:force_original_aspect_ratio=decrease,pad=1080:1920:(ow-iw)/2:(oh-ih)/2:black[fg];[0:v]scale=1080:1920,boxblur=20:20[bg];[bg][fg]overlay=(W-w)/2:(H-h)/2" \
  -c:v libx264 -preset fast -crf 23 -pix_fmt yuv420p \
  -c:a aac -b:a 128k \
  tiktok_output.mp4

# Native vertical render from Remotion
npx remotion render src/index.ts Comp out/vertical.mp4 --width 1080 --height 1920

Instagram Square (1:1)

bash

# Center crop to square
ffmpeg -i input_16x9.mp4 \
  -vf "crop=ih:ih:(iw-ih)/2:0,scale=1080:1080" \
  -c:v libx264 -crf 23 -pix_fmt yuv420p \
  -c:a aac -b:a 128k \
  square_output.mp4

Common FFmpeg Operations

Trim

bash

# Fast trim (keyframe-based, instant)
ffmpeg -ss 00:00:05 -i input.mp4 -t 15 -c copy trimmed.mp4

# Frame-accurate trim (re-encodes)
ffmpeg -i input.mp4 -ss 00:00:05 -t 15 -c:v libx264 -crf 18 trimmed.mp4

Concatenate

bash

# Create file list
echo "file 'scene1.mp4'" > list.txt
echo "file 'scene2.mp4'" >> list.txt
echo "file 'scene3.mp4'" >> list.txt

# Lossless concat (same codec/resolution)
ffmpeg -f concat -safe 0 -i list.txt -c copy output.mp4

# Re-encoded concat (different sources)
ffmpeg -f concat -safe 0 -i list.txt -c:v libx264 -crf 18 output.mp4

Add Background Music

bash

# Music at -24dB under existing audio
ffmpeg -i video.mp4 -i music.mp3 \
  -filter_complex "[1:a]volume=-24dB[music];[0:a][music]amix=inputs=2:duration=first" \
  -c:v copy output.mp4

Speed Change

bash

# 2x speed (with audio pitch correction)
ffmpeg -i input.mp4 -vf "setpts=0.5*PTS" -af "atempo=2.0" fast.mp4

# 0.5x slow motion
ffmpeg -i input.mp4 -vf "setpts=2.0*PTS" -af "atempo=0.5" slow.mp4

GIF Creation

bash

# High quality GIF with palette
ffmpeg -i input.mp4 -vf "fps=15,scale=480:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" output.gif

Quality Checklist (Post-Render)

Before publishing, verify:

No black frames at start/end
Audio levels consistent (no sudden jumps)
Captions readable on mobile (test at 50% zoom)
Colors look correct on both dark and light screens
File size within platform limits
Aspect ratio correct for target platform
First frame is visually interesting (it becomes the thumbnail)
Last frame has clear CTA visible for 2+ seconds

Gotchas

Always use -pix_fmt yuv420p - some players can't handle other formats
Always use -movflags +faststart for web playback (moves metadata to file start)
FFmpeg -ss BEFORE -i = fast seek (keyframe). AFTER -i = accurate (slower)
aac codec needs -strict experimental on some FFmpeg versions
Complex filter graphs: keep each step simple. Claude makes subtle errors in long chains
Test on mobile FIRST - most video is watched on phones

Files

Just SKILL.md in skills/video-production/video-post-production of AnastasiyaW/codex-claude-code-config.

Open the folder on GitHubat commit 67709af

Compare with similar skills

Video Post Production next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Video Post Production compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Video Post Production this skillAnastasiyaW/codex-claude-code-config	154	—	~1.7k	Automated safety check: Pass	MIT	yesterday
Ffmpeg Skillkajisho5/ffmpeg-skill	1.9k	—	~7.4k	Automated safety check: Pass	MIT	yesterday
ShortsAgriciDaniel/claude-shorts	219	—	~3.2k	Automated safety check: Notes	MIT	3 mo ago
ShowtimeFavioVazquez/showtime	220	—	~3k	Automated safety check: Pass	MIT	2 days ago
Explainroovincentsch/explainroo	515	—	~439	Automated safety check: Pass	MIT	7 days ago
Watchmathiaschu/watch	142	—	~4k	Automated safety check: Warn	MIT	4 mo ago

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Works with

Questions about Video Post Production

What does Video Post Production do?

Video post-production rules: audio mastering, color, captions, platform export. Video Post Production is an agent skill from AnastasiyaW/codex-claude-code-config. Video post-production rules: audio mastering, color, captions, platform export.

When should I use Video Post Production?

Video Post Production fits situations like: export for tiktok; export settings; platform requirements; animate the video frames/scenes in code (use remotion-production-guide).

How do I install Video Post Production in Claude Code?

Run `npx skills add AnastasiyaW/codex-claude-code-config --skill video-post-production -a claude-code`. Or copy the skill folder (skills/video-production/video-post-production in AnastasiyaW/codex-claude-code-config) into .claude/skills/video-post-production in your project. Claude Code loads it when a task matches its description.

How do I install Video Post Production in Codex?

Run `npx skills add AnastasiyaW/codex-claude-code-config --skill video-post-production -a codex`. Or copy the skill folder (skills/video-production/video-post-production in AnastasiyaW/codex-claude-code-config) into .agents/skills/video-post-production in your project. Codex loads it when a task matches its description.

Can I use Video Post Production in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add AnastasiyaW/codex-claude-code-config --skill video-post-production -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/video-post-production, .gemini/skills/video-post-production, .github/skills/video-post-production and .opencode/skills/video-post-production in your project.

What does Video Post Production need to run?

Going by SKILL.md and its folder, Video Post Production needs the command-line tools its instructions call (ffmpeg and npx). Our summary lists: Node.js.

Does Video Post Production access the network?

SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Video Post Production safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Video Post Production use?

Video Post Production is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Video Post Production use?

About 1.7k tokens (SKILL.md is roughly 6.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Video Post Production?

Skills that share tags, products or a category with Video Post Production: Ffmpeg Skill (kajisho5/ffmpeg-skill, 1.9k stars), Shorts (AgriciDaniel/claude-shorts, 219 stars), Showtime (FavioVazquez/showtime, 220 stars) and Explainroo (vincentsch/explainroo, 515 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Video Post Production?

AnastasiyaW (a GitHub user) maintains it in AnastasiyaW/codex-claude-code-config, which has 154 GitHub stars. The repository holds 50 skills in this directory. The repository was last updated on October 9, 2026.

Source: AnastasiyaW/codex-claude-code-config on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Video Post Production

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Video Post-Production Guide

Audio Rules

Volume Levels (dB)

Music Selection by BPM

Audio Mastering Chain (FFmpeg)

Free Music/SFX Libraries

Caption / Subtitle Rules

Standards

Burn-in Captions (FFmpeg)

Color Correction

Quick Presets (FFmpeg)

Platform Export Configs

YouTube (16:9)

TikTok / Instagram Reels (9:16)

Instagram Square (1:1)

Common FFmpeg Operations

Trim

Concatenate

Add Background Music

Speed Change

GIF Creation

Quality Checklist (Post-Render)

Gotchas

Files

Compare with similar skills

Similar skills

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Related

Questions about Video Post Production